North Royalton WWTP 'B'

NPDES permit OH0026808 · Minor POTW · effective, expires 2029-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 67 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (130)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedWKLY MAX <= 18 mg/L all year
001Solids, total suspendedMO AVG <= 45.5 kg/d all year
001Solids, total suspendedWKLY MAX <= 68.2 kg/d all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY MAX <= 2.3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY MAX <= 8.6 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 4.9 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 15.2 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY MAX <= 8.7 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY MAX <= 32.6 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]WKLY MAX <= 1.5 mg/L all year
001Phosphorus, total [as P]MO AVG <= 3.8 kg/d all year
001Phosphorus, total [as P]WKLY MAX <= 5.7 kg/d all year
001Phosphate, ortho, dissolved [as P]MO AVG report only all year
001Phosphate, ortho, dissolved [as P]DAILY MX report only all year
001Nickel, total recoverableMO AVG report only Mar, Jun, Sep, Dec
001Nickel, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Zinc, total recoverableMO AVG report only Mar, Jun, Sep, Dec
001Zinc, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Cadmium, total recoverableMO AVG report only Mar, Jun, Sep, Dec
001Cadmium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Lead, total recoverableMO AVG report only Mar, Jun, Sep, Dec
001Lead, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Chromium, total recoverableMO AVG report only Mar, Jun, Sep, Dec
001Chromium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Copper, total recoverableMO AVG report only all year
001Copper, total recoverableDAILY MX report only all year
001Chromium, hexavalent dissolved [as Cr]MO AVG report only Mar, Jun, Sep, Dec
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only Mar, Jun, Sep, Dec
001E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .019 mg/L May, Jun, Jul, Aug, Sep, Oct
001Mercury, total low levelMO AVG <= 1.88 ng/L all year
001Mercury, total low levelDAILY MX <= 1700 ng/L all year
001Mercury, total low levelMO AVG <= .0000071 kg/d all year
001Mercury, total low levelDAILY MX <= .00644 kg/d all year
001Cyanide, free availableMO AVG report only all year
001Cyanide, free availableDAILY MX report only all year
001Toxicity [acute], Ceriodaphnia dubiaMO AVG report only Aug
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only Aug
001Toxicity [chronic], Ceriodaphnia dubiaMO AVG report only Aug
001Toxicity [chronic], Ceriodaphnia dubiaDAILY MX report only Aug
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MO AVG report only Jun, Aug
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only Jun, Aug
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MO AVG report only Jun, Aug
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX report only Jun, Aug
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6.5 SU all year
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 37.9 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 56.8 kg/d all year
300OverflowsMO AVG report only all year
300OverflowsDAILY MX report only all year
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
601pHDAILY MN report only all year
601pHDAILY MX report only all year
601Solids, total suspendedMO AVG report only all year
601Solids, total suspendedDAILY MX report only all year
601Mercury, total low levelMO AVG report only all year
601Mercury, total low levelDAILY MX report only all year
601BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
601BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
602Solids, total suspendedMO AVG report only all year
602Solids, total suspendedDAILY MX report only all year
602Flow, in conduit or thru treatment plantMO AVG report only all year
602Flow, in conduit or thru treatment plantDAILY MX report only all year
602BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
602BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
602Bypass valveMO AVG report only all year
602Bypass valveDAILY MX report only all year
602Bypass of treatmentMO AVG report only all year
602Bypass of treatmentDAILY MX report only all year
801Temperature, water deg. centigradeMO AVG report only all year
801Temperature, water deg. centigradeDAILY MX report only all year
801Oxygen, dissolved [DO]DAILY MN report only all year
801pHDAILY MN report only all year
801pHDAILY MX report only all year
801Nitrogen, ammonia total [as N]MO AVG report only all year
801Nitrogen, ammonia total [as N]DAILY MX report only all year
801Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
801Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
801Nitrite + Nitrate total [as N]MO AVG report only all year
801Nitrite + Nitrate total [as N]DAILY MX report only all year
801Phosphorus, total [as P]MO AVG report only all year
801Phosphorus, total [as P]DAILY MX report only all year
801E. coli, MTEC-MFMO GEOMN report only Jun, Jul, Aug
801E. coli, MTEC-MFDAILY MX report only Jun, Jul, Aug
801%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiaMO AVG report only Aug
801%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiaDAILY MX report only Aug
801%Effect Static Renewal 96Hr Acute Pimephales promelasMO AVG report only Jun, Aug
801%Effect Static Renewal 96Hr Acute Pimephales promelasDAILY MX report only Jun, Aug
801%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AVG report only Aug
801%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX report only Aug
801%Effect Static Renewal 7Day Chronic Pimephales promelasMO AVG report only Jun, Aug
801%Effect Static Renewal 7Day Chronic Pimephales promelasDAILY MX report only Jun, Aug
901Temperature, water deg. centigradeMO AVG report only all year
901Temperature, water deg. centigradeDAILY MX report only all year
901Oxygen, dissolved [DO]DAILY MN report only all year
901pHDAILY MN report only all year
901pHDAILY MX report only all year
901Nitrogen, ammonia total [as N]MO AVG report only all year
901Nitrogen, ammonia total [as N]DAILY MX report only all year
901Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
901Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
901Nitrite + Nitrate total [as N]MO AVG report only all year
901Nitrite + Nitrate total [as N]DAILY MX report only all year
901Phosphorus, total [as P]MO AVG report only all year
901Phosphorus, total [as P]DAILY MX report only all year
901Hardness, total [as CaCO3]MO AVG report only all year
901Hardness, total [as CaCO3]DAILY MX report only all year
901E. coli, MTEC-MFMO GEOMN report only Jun, Jul, Aug
901E. coli, MTEC-MFDAILY MX report only Jun, Jul, Aug

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states